Svar till: Tankar kring SAAF/V och nästa utbrott av T Coronae Borealis

Ny Astronomer’s Telegram av Marchev et al (https://www.astronomerstelegram.org/?read=17784) med lite intressant information:

The data shows that brightness of the star has returned to the state it was back in 2015. Comparing the values published by Yankova et al. (2026) which were obtained at 2024 we see the brightness has declined in U with 1 magnitude and in B and V filters with around 0.5 magnitude. In our most recent observations, we see 0.350 magnitudes of flickering in U filter while in 2025 it was observed around 0.417 magnitude as for B we see an increase from 0.07 in 2025 to 0.15 magnitude of flickering now and for V it was 0.10 in 2025 and now it is 0.05. It is expected for recurrent novae like T CrB to have a significant decrease in brightness and have a generally lower state before eruption. If the current trend for decreasing brightness continues we can probably expect the nova eruption to happen in the next 5-6 months based on calculations for the mass accretion rate and the critical mass needed to start the process conducted in the PhD thesis of Vladislav Marchev (2025).

Annars inte så mycket nytt på T CrB fronten: